im not a fan of either Stauffer or Pelfrey, but of all of the known quantities available to the bullpen, they are 2 of the 3 least worrisome.
Stauffer was a decent reliever in a very pitcher friendly park, Pelfrey has had some success as a pitcher in the past. Neither one of them has much of a stake attached to them, so if they blow up in epic fashion, it's easy to pull the hook.
My concern is that so much of the bullpen is tied to guys like Fien, Duensing, etc, who we've watched fail in epic fashion for 4 years straight. TR doesn't have 6 high upside relief pitchers knocking on the big league door, he has 2 maybe 3. What about 4-5-6 with injury? Much like the last couple years it's an optionless team, especially in the pitching department.